Direct additive manufacturing of Al2O3–TiCp functionally graded ceramics by laser-directed energy deposition

Yu，Xuexin1; Wu，Dongjiang1; Bi，Weiming1; Feng，Xiao1; Zhao，Ziyuan1; Hao，Yunbo2; Ma，Guangyi1; Zhou，Cong3; Niu，Fangyong1

2024

10.1111/jace.19653

Journal of the American Ceramic Society   影响因子和分区

0002-7820

1551-2916

Functionally graded ceramics (FGCs), which combine the properties of various composite ceramics, have been widely used in the aerospace, armament, and other industries. One of the newest melt-growth ceramic additive manufacturing techniques, laser directed energy deposition (LDED), enables the creation of gradient materials by controlling the ratio of powder delivery. Ceramic–ceramic type gradient materials are the subject of fewer studies, and the majority of LDED gradient material systems now in research are metal–metal type and metal–ceramic type gradient materials. In this paper, LDED is used to create TiCp reinforced AlO FGCs with three different transition paths. The results indicate that the longitudinal section of the gradient samples distinctly exhibits characteristics of gradient distribution. Furthermore, as the proportion of TiCp increases, there is a corresponding increase in the proportion of TiCp particles in the samples. The microstructure of AlO transforms from columnar crystals to irregular shapes. Regarding the mechanical properties of the gradient samples, the area containing 30 wt.% of TiCp shows a significant improvement in wear resistance, with a 48.13% increase compared to the AlO region. Additionally, this region demonstrates a 12.62% rise in hardness and a 9.48% increase in fracture toughness.

additive manufacturing Al2O3 ceramics graded material laser-directed energy deposition

SCI ; EI

英语

其他

MATERIALS SCIENCE

2-s2.0-85181196273

Scopus

1.State Key Laboratory of High-Performance Precision Manufacturing,Dalian University of Technology,Dalian,Liaoning,China
2.Shanghai Aerospace Equipments Manufacturer Co.,Ltd,Shanghai,China
3.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,China

Yu，Xuexin,Wu，Dongjiang,Bi，Weiming,等. Direct additive manufacturing of Al2O3–TiCp functionally graded ceramics by laser-directed energy deposition[J]. Journal of the American Ceramic Society,2024,107(5):3522-3533.

Yu，Xuexin.,Wu，Dongjiang.,Bi，Weiming.,Feng，Xiao.,Zhao，Ziyuan.,...&Niu，Fangyong.(2024).Direct additive manufacturing of Al2O3–TiCp functionally graded ceramics by laser-directed energy deposition.Journal of the American Ceramic Society,107(5),3522-3533.

Yu，Xuexin,et al."Direct additive manufacturing of Al2O3–TiCp functionally graded ceramics by laser-directed energy deposition".Journal of the American Ceramic Society 107.5(2024):3522-3533.